Home / 403,436.80-556,720.75-222,114.30

Finding the Fourth Proportional to 403,436.80, 556,720.75 and 222,114.30

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Solution

The fourth proportional to 403,436.80, 556,720.75 and 222,114.30 is: 306,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,436.80 : 556,720.75 = 222,114.30 : x
  2. Step 2: Convert to fraction form
    403,436.80/556,720.75 = 222,114.30/x
  3. Step 3: Cross multiply
    403,436.80x = 556,720.75 × 222,114.30
  4. Step 4: Simplify right side
    403,436.80x = 123,655,639,753.83
  5. Step 5: Solve for x
    x = 123,655,639,753.83/403,436.80
  6. Step 6: Final answer
    x = 306,505.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.